Bicycle-guard.



' Patented Get. In, 1399.

W; 'J. CHAPMAN. BlCYCLE QUARIL. (Application fllod own, 1855.

2hoets-Sheet 1.

(lo Modal.)

" UNITED STATES PA/TENT OFFI E.

WILLIAM J. 'o rMAN, or sToUeHrr'oN, MASSAOHUSETTS, AsStenon TO THE CHAPMAN & SONS MANUFACTURING COMPANY, or SAMEPLACE.

BlGYCLE -GUARD.

SPECIFICATION forming part of Letters Patent No. 634,520, dated October 10, 1899.

Application filed December 19, 1898. Serial No. 699,690. (No models) To wZZ whom, it may cortcerr t: lower end of the brace-rod d, as in Fig. 1, and

Be it known that I, WILLIAM J. CHAPMAN, the two brace-rods are from one continuous a citizen of the United States, residing at length of metal, as shown in 'Fig. 2." At the 1 Stoughton, in the county of Norfolk and State lower end of each brace-rod I form a book 6,

of Massachusetts, have. invented a new and extending down and backward, as shown in 55 useful Improvement in Bicycle- Guards, of Fig. 3, and also reaching inwardly, as shown which the following is a full, clear, and exact in Fig. 2. At the upper part of the bend unitdescription; ing these brace-rods I form'a substantially he object of this invention is the construcsimilar hook f, reaching up and backward, as tion of improved meansforattachingthe mudshown in Fig. 3. 6o

guard brace to the bicycle-frame and'to the Having drilled asimple hole 2) through the mud-guard, and,further, for an improved lacmud-guard b and holes a through the tubes ing-bracketand means for securing itin place. a, all that is necessary to do in order to apply In the attachment of lacing-brackets and the brace-rods is to insert the points of the t 5 guard-braces toladies bicycles it iscustomary hooks c in the holes a, with the guard-brace 65 to drill and tap screw-holes in the bicycle orbrace-rodsdextendingbackwardfromsuch frame; but as the tubingof which the frames holes andsoinewhat below a horizontal posiare composed is quite thin the thickness of tion. With the guard-brace thus positioned,

' metal for engaging the attaching-screws is so the hooks 6 can be worked into the holes a and comparatively slight that it is very difficult to said brace raised into its normal position, as 70 make such screws remain in place. Their shown in Figs. 1 and 3. The inud-guardbis threads or those of the screw-holes either strip now taken and with its rear portion in a verofi or the screws jarout and the parts become tical position its hole b is engaged with the unfastened. Moreover,thescrewsthemselves hook f. The mud-guard is now swung forand the labor of drilling and tapping the ward and downward on such hook as a pivot 75 screw-holes constitute an added item of exuntil its front end can be secured to the frame pense in the construction of a bicycle. at b" in the usual manner.

Intny construction I'do away entirely with The relative positions of 'the tubing 0., screws forthe attachmentof thelacing-brackguard-brace and guard, and of the hooks e ets to the bicycle-tubing and for securing the and f are now those illustrated in Fig. 3, by 80 mud-guard brace-to the guard and to the tubwhich it will be clearly seen that so long as ing,asillustrated in the drawingsformingpart the guard and tubing retain these positions of this specification, and in whichit willbe impossible for the hooks to become Figure 1 is a side elevation of a portion of disengaged. After said parts have been thus 3 5 a bicycle-frame, showing my guard-brace and put imposition the lacing l is strung through 8 5 lacing-bracket attached thereto. Fig. 2 is a the lacing-brackets g and the guard in the view of the guard-brace from the rear. Fig. usual manner.

3 is a detail view illustrating the method of In the modified construction setforth in attaching the guard-brace to the guard and Fig. 4 the lacing-brackets g are made sepa- 40 to the frame-tubing. Fig. 4 is a side elevarate from the brace d, although the mode of 0 tion of a modifiedform of the lacing-bracket attaching the upper end thereof to the guard and the means for attaching it and the braceremains the same. Here therlacing-bracket rod to the tubing. Fig. 5 is a sectional detail is stamped from sheet metal and formed with view of this modification. Fig. 6 is a face two lacing-eyes h and with a slightly-modiview of this modifiedform of lacing-bracket, fied hook c. In the body of this bracket are 95 and Fig. 7 is a sectional view of the same on two slots h 71. through the former of which the line X X in Fig. 6; and Figs. 8 and 9, a is inserted the ofiset end'd, of the brace (1-. further modification of bracket. The slot it does not cut the material of the In the preferred form of my invention I bracket entirely away, but shapes the same make each lacing-bracket g integral with the into the hand h. After having inserted the loo offset end (1 of the brace through the slot or hole h2 the bracket g is swung around until its hand 7t firmly engages the same, as shown in Fig. 5. In applying this form of bracket and brace the two brackets are first attached to the tubes at by theinsertion of the hooks e in the holes a. The guard-brace is then connected With the brackets, as already described, and then the guard is engaged with the hook f and brought down and fastened at Z), as set forth in the description of the first form of my invention.

In case it is desired to apply the lacingbrackets to the tubing independently of the brace I construct the same as shown in Figs. Sand 0. Here the bracket is formed only with the 1acing-eyes h and the hook e, the lacing-cords serving to keep the hook from disengagement with the hole a in the tubing after it has once been inserted therein and the bracket brought back against the said tubing. WVhat I claim as my invention, and for which I desire Letters Patent, is as follows, to wit:

1. In a bicycle, the combination with the tubing having the holes through the walls thereof, of the guard-brace having the hooks at the upper and lower ends, and the guard having the hole in the same, whereby said brace can be secured to the guard and tubing by engagementof said hooks with said holes, and after the forward end of the guard has been fastened in place, all said parts are rigidly united, substantially as set forth.

2. In a bicycle, the combination with the tubing having the holes through the walls thereof, of the guard-brace having the hooks at the upper and lower ends and the laeingbrackets at the lower ends, and the guard having the hole through the same, wherebysaid brace and brackets can be secured to the guard and tubing by the engagement of said hooks with said holes, and after the forward part of said guard has been fastened in place and the lacing strung between the brackets and guard, all said parts are rigidly united, substantially as set forth.

3. In a bicycle, the combination of the tub ing having the hole through its wall, the lacing-bracket having the hook inserted in said hole, the guard means for supporting the rear of said guard and the lacing strung between said bracket and guard, said hook and hole being so arranged that after such lacing has been strung, even if loosely, said hook cannot become disengaged from the hole in the tubing, substantially as set forth.

In testimony that I claim the foregoing invention I have hereunto set my hand, this 16th day of December, 1898.

IVILLIA M J. CHAPMAN. 

